Home / 3,817.12-5,725.68-2,457.76

Finding the Fourth Proportional to 3,817.12, 5,725.68 and 2,457.76

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Solution

The fourth proportional to 3,817.12, 5,725.68 and 2,457.76 is: 3,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.12 : 5,725.68 = 2,457.76 : x
  2. Step 2: Convert to fraction form
    3,817.12/5,725.68 = 2,457.76/x
  3. Step 3: Cross multiply
    3,817.12x = 5,725.68 × 2,457.76
  4. Step 4: Simplify right side
    3,817.12x = 14,072,347.28
  5. Step 5: Solve for x
    x = 14,072,347.28/3,817.12
  6. Step 6: Final answer
    x = 3,686.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.